You sound like someone who has never ridden a bike through broken terrain.
I'll argue that the "flat" used by the comment above might be better taken on a more granular level. You can go up and down mountains just fine so long as there are no logs, large rocks, pits, or gullies that are in the way.
I was doing some D&D world building a while back and wanted to really dive into transportation of people/goods and found the same problem. Tenser’s Floating Disk is a very low level wizard spell that basically does away with all but the heaviest ships and carts.
It's the same for the trek universe. They have personal transportation methods that mean there's literally zero need for a bicycle for anything other than recreation.
Hell, Lower Decks opens with Mariner pushing around a hover cart full of stuff. It's literally the cold open of the entire series.
If you can have a hover cart like that, then why bother with a bike? Need to move stuff to a remote area? Get the hover cart, you don't need to cut a trail, just go over the obstacles. And that's if the transporter doesn't work if the first place to beam the people and equipment to a nearby area.